Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites

Guo Meng Zhao; Guo meng Zhao; Y. S. Wang; D. J. Kang; W. Prellier; M. Rajeswari; H. Keller; T. Venkatesan; C. W. Chu; R. L. Greene

doi:10.1103/PhysRevB.62.R11949

Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites

Guo Meng Zhao
, Guo meng Zhao
, Y. S. Wang
, D. J. Kang
, W. Prellier
, M. Rajeswari
, H. Keller
, T. Venkatesan
, C. W. Chu
, R. L. Greene

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Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

Recent research suggests that the charge carriers in the paramagnetic state of the magnetoresistive manganites are small polarons. Here we report studies of the oxygen-isotope effects on the intrinsic resistivity and thermoelectric power in several ferromagnetic manganites. The precise measurements of these isotope effects allow us to make a quantitative data analysis. Our results do not support a simple small-polaron model, but rather provide compelling evidence for the presence of small immobile bipolarons, i.e., pairs of small polarons.

Original language	English
Article number	R11949
Pages (from-to)	R11949-R11952
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	62
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.62.R11949
Publication status	Published - 2000 Nov 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.62.R11949

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Zhao, G. M., Zhao, G. M., Wang, Y. S., Kang, D. J., Prellier, W., Rajeswari, M., Keller, H., Venkatesan, T., Chu, C. W., & Greene, R. L. (2000). Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites. Physical Review B - Condensed Matter and Materials Physics, 62(18), R11949-R11952. Article R11949. https://doi.org/10.1103/PhysRevB.62.R11949

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title = "Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites",

abstract = "Recent research suggests that the charge carriers in the paramagnetic state of the magnetoresistive manganites are small polarons. Here we report studies of the oxygen-isotope effects on the intrinsic resistivity and thermoelectric power in several ferromagnetic manganites. The precise measurements of these isotope effects allow us to make a quantitative data analysis. Our results do not support a simple small-polaron model, but rather provide compelling evidence for the presence of small immobile bipolarons, i.e., pairs of small polarons.",

author = "Zhao, \{Guo Meng\} and Zhao, \{Guo meng\} and Wang, \{Y. S.\} and Kang, \{D. J.\} and W. Prellier and M. Rajeswari and H. Keller and T. Venkatesan and Chu, \{C. W.\} and Greene, \{R. L.\}",

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Zhao, GM, Zhao, GM, Wang, YS, Kang, DJ, Prellier, W, Rajeswari, M, Keller, H, Venkatesan, T, Chu, CW & Greene, RL 2000, 'Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites', Physical Review B - Condensed Matter and Materials Physics, vol. 62, no. 18, R11949, pp. R11949-R11952. https://doi.org/10.1103/PhysRevB.62.R11949

TY - JOUR

T1 - Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites

AU - Zhao, Guo Meng

AU - Zhao, Guo meng

AU - Wang, Y. S.

AU - Kang, D. J.

AU - Prellier, W.

AU - Rajeswari, M.

AU - Keller, H.

AU - Venkatesan, T.

AU - Chu, C. W.

AU - Greene, R. L.

PY - 2000/11/1

Y1 - 2000/11/1

N2 - Recent research suggests that the charge carriers in the paramagnetic state of the magnetoresistive manganites are small polarons. Here we report studies of the oxygen-isotope effects on the intrinsic resistivity and thermoelectric power in several ferromagnetic manganites. The precise measurements of these isotope effects allow us to make a quantitative data analysis. Our results do not support a simple small-polaron model, but rather provide compelling evidence for the presence of small immobile bipolarons, i.e., pairs of small polarons.

AB - Recent research suggests that the charge carriers in the paramagnetic state of the magnetoresistive manganites are small polarons. Here we report studies of the oxygen-isotope effects on the intrinsic resistivity and thermoelectric power in several ferromagnetic manganites. The precise measurements of these isotope effects allow us to make a quantitative data analysis. Our results do not support a simple small-polaron model, but rather provide compelling evidence for the presence of small immobile bipolarons, i.e., pairs of small polarons.

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JO - Physical Review B - Condensed Matter and Materials Physics

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IS - 18

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Evidence for the immobile bipolaron formation in the paramagnetic state of the magnetoresistive manganites

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